Dr D. N. Dwivedi is Reader in Ramjas College, University of Delhi. He has over three decades experience of teaching undergraduate and postgraduate courses in economics. He has been the visiting faculty of several management institutes. He has published over 36 papers on different economic issues of the country in academic journals and periodicals. His research publications include Problems and Prospects of Agricultural Taxation in Uttar Pradesh and Economic Concentration and Poverty in India. Dr. Dwivedi has authored several popular textbooks including Managerial Economics, Principles of Economics, Macroeconomic Theory, International Economics and Readings in Indian Public Finance.